/*
 * Created on 21-Jan-2005
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package com.aelitis.azureus.core.dht.transport.udp.impl;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import com.aelitis.azureus.core.dht.transport.DHTTransportException;
import com.aelitis.azureus.core.dht.transport.DHTTransportValue;
import com.aelitis.azureus.core.dht.transport.udp.DHTTransportUDP;
import com.aelitis.azureus.core.dht.transport.udp.impl.packethandler.DHTUDPPacketNetworkHandler;

/**
 * @author parg
 * 
 */

public class DHTUDPPacketRequestStore extends DHTUDPPacketRequest {
    public static final int MAX_KEYS_PER_PACKET = 255; // 1 byte DHTUDPPacket.PACKET_MAX_BYTES / 20;
    public static final int MAX_VALUES_PER_KEY = 255; // 1 byte DHTUDPPacket.PACKET_MAX_BYTES / DHTUDPUtils.DHTTRANSPORTVALUE_SIZE_WITHOUT_VALUE;

    private int random_id;
    private byte[][] keys;
    private DHTTransportValue[][] value_sets;

    public DHTUDPPacketRequestStore(DHTTransportUDPImpl _transport, long _connection_id, DHTTransportUDPContactImpl _local_contact,
            DHTTransportUDPContactImpl _remote_contact) {
        super(_transport, DHTUDPPacketHelper.ACT_REQUEST_STORE, _connection_id, _local_contact, _remote_contact);
    }

    protected DHTUDPPacketRequestStore(DHTUDPPacketNetworkHandler network_handler, DataInputStream is, long con_id, int trans_id)

    throws IOException {
        super(network_handler, is, DHTUDPPacketHelper.ACT_REQUEST_STORE, con_id, trans_id);

        if (getProtocolVersion() >= DHTTransportUDP.PROTOCOL_VERSION_ANTI_SPOOF) {

            random_id = is.readInt();
        }

        keys = DHTUDPUtils.deserialiseByteArrayArray(is, MAX_KEYS_PER_PACKET);

        // times receieved are adjusted by + skew

        value_sets = DHTUDPUtils.deserialiseTransportValuesArray(this, is, getClockSkew(), MAX_KEYS_PER_PACKET);

        super.postDeserialise(is);
    }

    public void serialise(DataOutputStream os)

    throws IOException {
        super.serialise(os);

        if (getProtocolVersion() >= DHTTransportUDP.PROTOCOL_VERSION_ANTI_SPOOF) {

            os.writeInt(random_id);
        }

        DHTUDPUtils.serialiseByteArrayArray(os, keys, MAX_KEYS_PER_PACKET);

        try {
            DHTUDPUtils.serialiseTransportValuesArray(this, os, value_sets, 0, MAX_KEYS_PER_PACKET);

        } catch (DHTTransportException e) {

            throw (new IOException(e.getMessage()));
        }

        super.postSerialise(os);
    }

    protected void setRandomID(int _random_id) {
        random_id = _random_id;
    }

    protected int getRandomID() {
        return (random_id);
    }

    protected void setValueSets(DHTTransportValue[][] _values) {
        value_sets = _values;
    }

    protected DHTTransportValue[][] getValueSets() {
        return (value_sets);
    }

    protected void setKeys(byte[][] _key) {
        keys = _key;
    }

    protected byte[][] getKeys() {
        return (keys);
    }

    public String getString() {
        return (super.getString());
    }
}